A refining-chemical integrationcompany carried out a study on the three-component separation scheme by upgrading the light and heavy gasoline fractionator of catalytic gasoline hydrogenation unit to light,medium and heavy components.It adopted the process simulation to compare and analyzethe feasibility of scheme to realize3 components separation on the conventional single tower and the interwalled tower.The results showed that the maximum amount of medium gasoline can be extracted at the column pressure of 0.68 MPa and 0.45MPa,and the yields was up to 49.79％and 51.72％respectively.Combined with the material balance of the whole plant,it optimized the unitprocess flow to achieve the purpose of reducing gasoline production and increasing aromatics raw materials.This study will provide reference for the application of the interwalled tower in the field of mixed oil cutting.
关键词
催化汽油/间壁塔/改造/灵活性/芳烃原料
Key words
catalytic gasoline/interwalled tower/transformation/flexibility/aromatic material
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